|Year 1958|Title {the rebel|Role|Notes|
|---|---|---|---|
|1958|Sea Hunt|Seminard|1 episode|
|1960|Bourbon Street Beat|Joe Leslie|1 episode|
|1960|Surfside 6|Mr. Beamish|1 episode|
|1961|The Everglades|Wikkament|1 episode|
|1962|The New Breed|Manrique|1 episode|
|1962|Perry Mason|Forsette|1 episode|
|1962|Perry Mason|Alexander Glovatsky|1 episode|
|1963|GE True|Charles Colvin|1 episode|
|1965|Voyage to the Bottom of the Sea|Dr. Tabor Ulrich|1 episode|
|1965|Bob Hope Presents the Chrysler Theatre|General Leo Chareet|3 episodes|
|1966|The Man from U.N.C.L.E.|Colonel Hubris|1 episode|
|1966|Batman|King Tut|8 episodes|
|1966|I Spy|Karafatma|1 episode|
|1967|The Girl from U.N.C.L.E.|Sir Cecil Seabrook|1 episode|
|1967|T.H.E. Cat|General Burek|1 episode|
|1967|Daniel Boone|Milo Quaife|1 episode|
|1968|The Wild Wild West|Count Mario Vincenzo Robespierre Manzeppi|2 episodes|
|1969|The Flying Nun|Marko "The Magnificent" Antonio|1 episode|
|1969|Here's Lucy|Mr. Vermillion|1 episode|
|1969|It Takes a Thief|Mr. Kent|1 episode|
|1970|Get Smart|Hannibal Day|1 episode|
|1970|O'Hara, U.S. Treasury|Al Connors|1 episode|
|1973|Mannix|Hamilton Starr|1 episode|
|1973|Hawaii Five-O|Eric Damien|1 episode|
|1973 and 1975|The Odd Couple|Dr. Clove/Hugo Lovelace|2 episodes|
|1976|Ellery Queen|Dr. Friedland|1 episode|
|1976|The Tony Randall Show|Judge Bernard Gluck|1 episode|
|1976|Alice|Mr. James|1 episode|
|1977|The Hardy Boys/Nancy Drew Mysteries|Seth Taylor|1 episode|
|1979|Supertrain|Misto|1 episode|
|1979|Man from Atlantis|Dr. Schubert|9 episodes|
|1980|Taxi|James Caldwell|1 episode|
|1980|Fantasy Island|Dr. Albert Z. Fell|1 episode|
|1980–1981|Vega$|"Diamond" Jim|4 episodes|
|1981|Here's Boomer|Dr. Frankenstein|1 episode|

Question: what year was he most featured in shows?
Answer: 1979